Home / 55,739.80-83,480.10-38,114.20

Finding the Fourth Proportional to 55,739.80, 83,480.10 and 38,114.20

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Solution

The fourth proportional to 55,739.80, 83,480.10 and 38,114.20 is: 57,082.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.80 : 83,480.10 = 38,114.20 : x
  2. Step 2: Convert to fraction form
    55,739.80/83,480.10 = 38,114.20/x
  3. Step 3: Cross multiply
    55,739.80x = 83,480.10 × 38,114.20
  4. Step 4: Simplify right side
    55,739.80x = 3,181,777,227.42
  5. Step 5: Solve for x
    x = 3,181,777,227.42/55,739.80
  6. Step 6: Final answer
    x = 57,082.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.